hey everyone, i'm new to the site, and just getting into long range shooting. the longest i've ever shot with any success up until now was roughly 450-500 yards with my a-bolt .204, but it was a very calm day, and i was using a ballistic reticle to judge holdover. lately i've been wanting to learn the proper way to dial in for different ranges. can anyone recommended any good books on ballistics and long range shooting? i currently have a browning a-bolt medallion 7mm win mag, and i just bought a used (less than 20 rounds) Savage 112BVSS 7mm RUM with the following: 30" Schneider fluted stainless match barrel 1-12" twist, muzzle brake, sharpshooter trigger, not sure what kind of stock but its definitely not factory, pillar bedded. it was supposedly built by John Lewis at Carolina Precision Rifles, and included Redding dies. I topped it off with a Burris Signature Select 6-24x44 that I already had on hand. sorry for rambling on so long, i've been spending a lot of time reading the forums and i'm sure i will learn a lot. thanks in advance!